Comparative Quantitative Analysis of Inorganic Mineral Fractions and Organic Matrix Components in Layer Chicken Eggshells Using FTIR, XRD, and CHNS Techniques . injoere [Internet]. 2026 Jun. 24 [cited 2026 Jun. 25];6(S4):124-6. Available from: https://injoere.com/index.php/injoere/article/view/909